Re: Problem understanding how WebBrowser Control communicates with APP

From: Igor Tandetnik (itandetnik_at_mvps.org)
Date: 04/26/04 

Date: Mon, 26 Apr 2004 09:28:53 -0400

"Martin Payne" <martin@microcosm.co.uk> wrote in message
news:408cdcbe.6057109@news.eclipse.co.uk
>> Yes. That's why you register a class factory with the
>> IInternetSession, not the APP itself. The class factory should
>> manufacture new instances on demand.
>>
>> When your implementation of IClassFactory::CreateInstance is called,
>> you - surprise - create an instance.
>
> That is my problem - I do not have an implmentation of the
> IClassFactory. To be honest I do not really know how to do this. I
> based my code around the CBitmappAPP that you sent me (from my 6 Feb
> post) which calls CreateInstance for the IClassFactory but does not
> implement the CreateInstance anywhere.

It uses ATL's stock IClassFactory implementation. If you use ATL, that's
how you can get it:

IClassFactory* pCF;
HRESULT hr = YourClass::_ClassFactoryCreatorClass::CreateInstance(
    YourClass::_CreatorClass::CreateInstance,
    IID_IClassFactory,
    reinterpret_cast<void**>(&pCF));

Otherwise, write a simple COM object that implements IClassFactory
interface. 

-- 
With best wishes,
    Igor Tandetnik
"For every complex problem, there is a solution that is simple, neat,
and wrong." H.L. Mencken

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